Grain size effect on the radiation damage tolerance of cubic zirconia against simultaneous low and high energy heavy ions: Nano triumphs bulk

AbstractIrradiation induced damage in materials is highly detrimental and is a critical issue in several vital science and technology fields, e.g., the nuclear and space industries. While the effect of dimensionality (nano/bulk) of materials on its radiation damage tolerance has been receiving tremendous interest, studies have only concentrated on low energy (nuclear energy loss (Sn) dominant) and high energy (electronic energy loss (Se) dominant) irradiations independently (wherein, interestingly, the effect is opposite). In-fact, research on radiation damage in general has almost entirely focused only on independent irradiations with low and/or high energy particles till date, and investigations under simultaneous impingement of energetic particles (which also correspond to the actual irradiation conditions during real-world applications) are very scarce. The present work elucidates, taking cubic zirconia as a model system, the effect of grain size (26 nm vs 80 nm) on the radiation tolerance against simultaneous irradiation with low energy (900 keV I) and high energy (27 meV Fe) particles/ions; and, in particular, introduces the enhancement in the radiation damage tolerance upon downsizing from bulk to nano dimension. This result is interpreted within the framework of the thermal-spike model after considering (1) the fact that there is essentially no spatial and time overlap between the damage events of the two ‘simultaneous’ irradiations, and (2) the influence of grain size on radiation damage against individual Sn and Se. The present work besides providing the first fundamental insights into how the grain size/grain boundary density inherently mediates the radiation response of a material to simultaneous Sn and Se deposition, also (1) paves the way for potential application of nano-crystalline materials in the nuclear industry (where simultaneous irradiations with low and high energy particles correspond to the actual irradiation conditions), and (2) lays the groundwork for understanding the material behaviour under other simultaneous (viz. Sn and Sn, Se and Se) irradiations.

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Radiation damage of BGO crystals due to low energy γ rays, high energy protons and fast neutrons

Nuclear Instruments and Methods in Physics Research ◽

10.1016/0167-5087(83)91247-4 ◽

1983 ◽

Vol 206 (1-2) ◽

pp. 107-117 ◽

Cited By ~ 55

Author(s):

Masaaki Kobayashi ◽

Kenjiro Kondo ◽

Hiromi Hirabayashi ◽

Shin-ichi Kurokawa ◽

Mitsuhiko Taino ◽

...

Keyword(s):

Radiation Damage ◽

High Energy ◽

Low Energy ◽

Fast Neutrons ◽

Γ Rays

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Electronic energy loss-induced effects in Fe85B15amorphous: Alloys irradiated by high energy heavy ions

Radiation Effects and Defects in Solids ◽

10.1080/10420158908214173 ◽

1989 ◽

Vol 110 (1-2) ◽

pp. 109-112 ◽

Cited By ~ 10

Author(s):

A. Audouard ◽

E. Balanzat ◽

J. C. Jousset ◽

G. Fuchs ◽

D. Lesueur ◽

...

Keyword(s):

Energy Loss ◽

Heavy Ions ◽

High Energy ◽

Electronic Energy

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Angular dependence of the electronic energy loss for low energy heavy ions under channeling conditions

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/0168-583x(96)00174-7 ◽

1996 ◽

Vol 115 (1-4) ◽

pp. 315-318 ◽

Cited By ~ 5

Author(s):

S. Gelfort ◽

H. Kerkow ◽

R. Stolle ◽

V.P. Petukhov ◽

E.A. Romanowski

Keyword(s):

Energy Loss ◽

Angular Dependence ◽

Heavy Ions ◽

Electronic Energy ◽

Low Energy

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Identification of 90Sr and 204Tl beta radiation sources by energy distribution with a 3GEM detector

DYNA ◽

10.15446/dyna.v87n215.84583 ◽

2020 ◽

Vol 87 (215) ◽

pp. 174-179

Author(s):

Freddy Fuentes Robayo ◽

Rafael Maria Gutierrez Salamanca

Keyword(s):

Energy Loss ◽

Energy Distribution ◽

Industrial Application ◽

Radiation Source ◽

Radiation Detection ◽

High Energy ◽

Low Energy ◽

Beta Radiation ◽

Detection And Identification ◽

Radiation Sources

This paper presents the performance of a 3GEM in terms of identification of high and low beta energy radiation sources through the energy distribution of the main beta radiation sources used for industrial application 90Sr and 204Tl. We compare the beta radiation theoretical energy loss into the drift zone with experimental energy distribution at different 3GEM voltages. The experimental results show that the Most Probable Value (MPV) of the fitted Landau distribution obtained from 90Sr and 204Tl obtained a degree of error lower than 14% in comparison to the theoretical calculation. Additionally, high energy beta radiation source (90Sr) is identified in comparison to low energy (204Tl) - taking into account the MPV and sigma values from the fitted Landau distribution. These results are essential to design and implement a new application that utilizes the performance and special characteristics of the 3GEM for beta radiation detection and identification.

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Angle-Resolved Energy-Loss Spectra of Gd2O3

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100133692 ◽

1990 ◽

Vol 48 (2) ◽

pp. 20-21

Author(s):

P. Schattschneider ◽

F. Hofer

Keyword(s):

Energy Loss ◽

Loss Function ◽

Energy Resolution ◽

Intensity Variation ◽

High Energy ◽

Low Energy ◽

Double Scattering ◽

Interband Transitions ◽

Diffraction Mode ◽

Energy Maximum

Energy loss spectra of heavy rare earths oxides show two well defined plasmon-like peaks below 40 eV and some intensity variation beyond. Since the high-energy maximum is at about twice the energy as the low-energy maximum, double scattering contributions may mask the former. This effect induces artifacts when one attempts to determine the dielectric function ε(ω) from Kramers-Kronig-analysis (KKA) of the loss spectrum. Knowledge of ε(ω) allows to heuristically assign interband transitions or plasma excitations to particular maxima. Measurements in diffraction mode allow detection of dispersive features in ε(ω,q).Polycrystalline Gd2O3-films of of 40 nm thickness were investigated at 120 kV in a Philips EM420, attached to which is a Gatan 607 Spectrometer. Spectra were taken in diffraction mode (image coupling) at 8 scattering angles with a q-resolution of ≈ 0.03 Å-1. Energy resolution was ≈ 2 eV. The spectra were combined to a q-dependent loss function, using aperture correction.

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Mg-Based Hydrogen Absorbing Materials for Thermal Energy Storage—A Review

Applied Sciences ◽

10.3390/app8081375 ◽

2018 ◽

Vol 8 (8) ◽

pp. 1375 ◽

Cited By ~ 5

Author(s):

Bo Li ◽

Jianding Li ◽

Huaiyu Shao ◽

Liqing He

Keyword(s):

Energy Storage ◽

Energy Density ◽

Energy Loss ◽

Thermal Energy ◽

Thermal Energy Storage ◽

Heat Storage ◽

High Energy ◽

Low Energy ◽

Potential Candidate ◽

Chemical Heat

Utilization of renewable energy such as solar, wind, and geothermal power, appears to be the most promising solution for the development of sustainable energy systems without using fossil fuels. Energy storage, especially to store the energy from fluctuating power is quite vital for smoothing out energy demands with peak/off-peak hour fluctuations. Thermal energy is a potential candidate to serve as an energy reserve. However, currently the development of thermal energy storage (TES) by traditional physical means is restricted by the relatively low energy density, high temperature demand, and the great thermal energy loss during long-period storage. Chemical heat storage is one of the most promising alternatives for TES due to its high energy density, low energy loss, flexible temperature range, and excellent storage duration. A comprehensive review on the development of different types of Mg-based materials for chemical heat storage is presented here and the classic and state-of-the-art technologies are summarized. Some related chemical principles, as well as heat storage properties, are discussed in the context. Finally, some dominant factors of chemical heat storage materials are concluded and the perspective is proposed for the development of next-generation chemical heat storage technologies.

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